Home / 485,280,954.45-727,921,431.68-370,489,698.45

Finding the Fourth Proportional to 485,280,954.45, 727,921,431.68 and 370,489,698.45

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Solution

The fourth proportional to 485,280,954.45, 727,921,431.68 and 370,489,698.45 is: 555,734,547.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,280,954.45 : 727,921,431.68 = 370,489,698.45 : x
  2. Step 2: Convert to fraction form
    485,280,954.45/727,921,431.68 = 370,489,698.45/x
  3. Step 3: Cross multiply
    485,280,954.45x = 727,921,431.68 × 370,489,698.45
  4. Step 4: Simplify right side
    485,280,954.45x = 269,687,391,716,563,008
  5. Step 5: Solve for x
    x = 269,687,391,716,563,008/485,280,954.45
  6. Step 6: Final answer
    x = 555,734,547.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.